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        <datestamp>2026-09-15T10:35:02Z</datestamp>
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          <dc:title>Hydration regulation of β-hemihydrate gypsum by sodium gluconate: Insights into microstructural evolution and the adsorption of carboxyl groups — Supplemental materials</dc:title>
          <dc:creator>jingsi li (24923674)</dc:creator>
          <dc:subject>Construction materials</dc:subject>
          <dc:subject>Gypsum blocks</dc:subject>
          <dc:subject>Sodium gluconate</dc:subject>
          <dc:description>&lt;p dir="ltr"&gt;This dataset contains the supplemental tables and figures for the manuscript entitled Hydration regulation of β-hemihydrate gypsum by sodium gluconate: Insights into microstructural evolution and the adsorption of carboxyl groups. The supplementary materials include the mix proportions of test samples, chemical composition of raw β-HH (wt%), XRD pattern and SEM images of raw β-HH, the correlation between sodium gluconate (SG) dosage and setting time for different β-HH samples, variations in FWHM and grain size of dihydrate gypsum (DH) at different SG dosages, as well as the fitting slope and fractal dimension of β-HH samples under various SG dosages. These materials support the findings presented in the main text.&lt;/p&gt;</dc:description>
          <dc:date>2026-09-15T10:35:02Z</dc:date>
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